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Caculation of principle error of involute profile processed by Archimedean hobbing cutter ;2. The equation of single hobbing cutter 's locomotion locus and the mathematical model of its instantaneous cutting area are established.

建立了单把滚刀旋切运动的轨迹方程和瞬时切削面积的数学模型，在此基础上对旋切面积的数学模型进行分析及简化，为旋切技术的实际应用提供了有力的依据。

Experimental synchronous rotor internal mixer and two kinds of 55L synchronous rotor internal mixer, consulted a number of published articles at home and abroad, then, for the first time, formed four kinds of physical model and the corresponding mathematical model which related to the mixed stock between the mixing chamber side and the top of the rotor wing, to the mixed stock between the two rotors and to the mixed stock at the various temperatures of the mixing chamber. And from the character of model, the author gave the relevant analytic solutions and finite element approximation arithmetic solutions during the experimental process of the synchronous rotor internal mixer.

因此，本文作者在XM—1.7实验用同步转子密炼机和两种50L同步转子密炼机上进行了大量的实验，并参阅国内外已发表的文献和资料，首次建立了同步转子密炼机混炼过程中，胶料在转子棱峰与密炼室壁之间、胶料在两同步转子之间和密炼室中混炼胶温度变化的四种物理模型及其相应的数学模型，并根据所建模型的特点，分别给出了相应的解析解或有限元数值解。

A mathematical model of transfer function and arithmetic of fuzzy control were designed for the valve.

构建了机电流量控制阀传递函数的数学模型，并为之设计了模糊控制算法。

Achieve a simple calculator functions, arithmetic, but also a number of other mathematical calculations, such as involution.

实现了一个简单的计算器的功能，可以加减乘除，还要其他一些数学运算，如乘方等。

The arithmetic has much less mathematical operation and much easier to be implemented in hardware.

该算法既减少了数学运算量又适用于硬件实现。

Arithmetical speed and used memory capacity in general program computer is decided by mathematical model of circuitry network.

电路网络的数学模型决定了计算机通用程序的运算速度和占用的存贮量。

In this report,a mathematical model of armature controlled dc motor is introduced,with specified parameters.

本文首先介绍了双闭环直流电机调速系统的数学模型，并为之设置了具体参数。

An optimum spatial filter is implemented on a cylindrical array based on the mathematical expression.

根据最佳空间滤波器的数学表述，在圆柱型基阵上实现了最佳空间滤波器。

The paper introduces the improvement to former mathematical model for reducing arrear.

介绍了对原缴费信用评价中信用分值计算数学模型的改进以减少欠费。

This paper reported a new method using tangential curvature to establish a mathematical model of the anterior cornea and an analysis of the regularity of the distribution of the asphericity Q. The curvature in the horizontal meridians is a prolate ellipse. The curvature in the vertical meridians is an oblate ellipse. The curvature of the horizontal meridians is important for anterior corneal asphericity.

本研究分析了运用正切曲率半径值建立人眼前表面角膜数学模型的科学性，显示角膜前表面水平子午线方向非球面性趋向于长椭圆，垂直子午线方向非球面性趋向于扁椭圆，说明人眼角膜的非球面性特性主要由水平子午线实现。

I can still vividly recall the impressive scenes you gave. You were among my friends and relatives who accompanied me from my house to the seaport and when the porters were slow to show up, you obligingly carried my suitcase for me.

你对我的种种感人情意，使我记忆犹新，那天你随着我的亲友从家里送我上轮船，搬运工迟迟不来，你毅然替我提着皮箱上船。

St. Nicholas became the patron saint of Russia, where he was famous for his red cape, flowing white beard, and bishop's mitre.

圣尼古拉成了俄罗斯人的守护神，在那里，他以身披红斗篷，留着飘逸的白胡须，戴着主教法冠而闻名。